Excitation synchronous motor frequency conversion speed regulation system based on improved particle swarm algorithm
A synchronous motor and a technology for improving particle swarms, applied in the direction of electronic commutation motor control, motor control, motor generator control, etc., can solve the problems of frequent startup of pumped storage units, endangering motor life, motor buffeting, etc.
Active Publication Date: 2021-01-29
深圳蓄能发电有限公司
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Problems solved by technology
But so far, in pumped storage power plants, pumped storage units need to be started and shut down frequently due to the demand for peak regulation and frequency regulation of the power grid.
In the process of starting and quitting operation, frequent changes in speed often cause chattering of the motor, which endangers the life of the motor. Therefore, the method of adjusting the rotor speed of the motor has not been satisfactorily solved until now, and further research and improvement are needed.
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[0063] figure 1 It is a structural diagram of the specific implementation of the frequency conversion speed regulation system of the excitation synchronous motor based on the improved particle swarm algorithm of the present invention. Such as figure 1 As shown, the excitation synchronous motor frequency conversion speed regulation system based on the improved particle swarm optimization algorithm of the present invention includes a speed calculation module 1, a speed difference calculation module 2, a particle swarm algorithm module 3, a speed PI regulator 4, a Clarke transformation module 5, and a Park transformation Module 6, torque component current difference calculation module 7, magnetic flux component current difference calculation module 8, torque component current PI regulator 9, magnetic flux component current PI regulator 10, reverse Park transformation module 11, SVPWM (Space Vector PulseWidth Modulation, space vector pulse width modulation) module 12 and voltage ...
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The invention discloses an excitation synchronous motor variable-frequency speed regulation system based on an improved particle swarm optimization algorithm, which adopts vector control to perform variable-frequency speed regulation control on an excitation synchronous motor and regulate the rotating speed of a rotor of the excitation synchronous motor in real time, and speed regulation, torque component current regulation and flux component current regulation are all realized by adopting a PI regulator. Proportional gain and integral gain of the speed PI regulator are determined by a particle swarm algorithm, and an improved fitness value calculation formula, an improved speed updating formula and an improved position updating formula are adopted in the determination process. On the basis of combination of traditional vector control and PI control, the particle swarm optimization is introduced and improved, the rotating speed of the rotor of the excitation synchronous motor is adjusted in real time, and the stability in the speed control process is improved.
Description
technical field [0001] The invention belongs to the technical field of motor intelligent control, and more specifically relates to an excitation synchronous motor frequency conversion speed regulation system based on an improved particle swarm algorithm. Background technique [0002] At present, the synchronous motor frequency conversion speed regulation control system can be divided into two categories from the control mode: one is the other control type frequency conversion speed regulation control system; the other is the self-controlled frequency conversion speed regulation control system. The frequency conversion device used in the external control type frequency conversion speed regulation control system is independent, and its output frequency is directly determined by the speed given signal. It belongs to the speed open-loop control system and is suitable for the occasion of parallel operation of multiple units. Since this system does not solve the problems of synchr...
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Login to View More IPC IPC(8): H02P25/024H02P27/08H02P27/04H02P21/00G06N3/00
CPCH02P25/024H02P27/08H02P27/045H02P21/0003G06N3/006H02P2207/05
Inventor 余涛贺儒飞窦博文汪志强李青陈创佳董俊杰彭潜黄业达俞家良刘群英李博文朱德清
Owner 深圳蓄能发电有限公司